Questions on Algebra: Graphs, graphing equations and inequalities answered by real tutors!

Tutors Answer Your Questions about Graphs (FREE)

Question 67561: draw graph
y=4/3x +2
Click here to see answer by checkley71(8403)

Question 67725: Graph 3x+2y=6
Thanks
Click here to see answer by stanbon(75887)

Question 67796: Solve by graphing.
x + y = 3
x - y = 1
I did:
x + y = 3 y = -x + 3 m = -1, 6 = 3
x - y = 1 -y = -x + 1 m = -1, 6 = 1
on my graph they coincided with each other instead of intersecting which is how the answer reads. (2,1)
Where did I go wrong?
Thanks a lot. Kyle
Click here to see answer by checkley71(8403)

Question 67823: what is y=mx+b if y=7, x=6, and m=undefined
Click here to see answer by stanbon(75887)

Question 67845: Draw the appropriate graphs in the following:
A small firm produces both AM and AM/FM car radios. The AM radios take 15 hours to prduce, and the AM/FM radios take 20 hours. The nimber of prduction hours is limited to 300 hours per week. The plant's capacity is limited to a total of 18 radios per week, and existing orders require that at least 4 AM radios and at least 3 AM/FM radios be produced per week. Write a system of inequalities representing this situation. Then, draw a graph of the feasible region given these conditions, in which X is the number of AM radios and Y is the number of AM/FM radios.
Any help with this would be greatly appreciated. Thanks.
Click here to see answer by stanbon(75887)

Question 67926: You have at least $30 in change in your drawer, consisting of
dimes and quarters. Write an inequality that shows the different number of coins
in your drawer.
Click here to see answer by stanbon(75887)

Question 67928: Can you tell me how to solve
X^2+9X+20=0 by factoring
Click here to see answer by checkley71(8403)

Question 67950: How would you graph this function?
f(x) = -2x - 5
Click here to see answer by stanbon(75887)

Question 68049: Ok, i need to graph each equation by using the slope and y-intercept.
Here is my problem:
5y+3=-5
Click here to see answer by stanbon(75887)

Question 68126: Solve by graphing the system.
2x + 4y = 2
x + 2y = 1
These problems I seem to have a hard time understanding. I am needing some help with this. Thanks
Click here to see answer by josmiceli(19441)

Question 68127: Solve by graphing the the system.
4x + 2y = 10
y = 4
Any help with this would be helpful, I am having a hard time with these problems. Thanks
Click here to see answer by stanbon(75887)

Question 68084: Graph the inequality
3x + y less than or equal to 5
I am confussed and not sure how to graph this equation. Thanks
Click here to see answer by stanbon(75887)

Question 68189: Graph the inequality
4x + y is greater than or equal to 4
Click here to see answer by funmath(2933)

Question 68148: If one-half of the complement of an angle plus three-fourths of the supplement of the angel equals 110 degrees, find the measure of the angel.
Click here to see answer by checkley71(8403)

Question 68117: Graph the solution set of x < 7.
Click here to see answer by funmath(2933)

Question 68236: I don't know how to graph two equations to find the breaking point.
C=25+x*0.24 and C=31+x*0.19
I have to graph these points to find the breaking point and I am stuck..How do I do this?
Thanks Brandi

Click here to see answer by checkley71(8403)

Question 68022: Given a line containing the points (1,4), (2,7), and (3,10) determine the slope-intercept form of the equation, provide one additional point on this line, and graph the function.
Click here to see answer by checkley71(8403)

Question 68273: Please help to graph on a rectangular coordinate system
x + 3y + 6 = 0
Click here to see answer by checkley71(8403)

Question 68265: PLease help!
Complete the square as an aid in graphing :
y = -x^2 + 8x - 12
Click here to see answer by Nate(3500)

Question 68290: I could really use some help. Thanks!
Angela

Find the slope of the line passing through the points (�8, �3) and (�2, 2).
Click here to see answer by checkley71(8403)

Question 68291: Which of the ordered pairs
(3, 1), (0, �4), (�4, 0), (�3, �7)
are solutions for the equation x � y = 4?

Thanks!

Click here to see answer by checkley71(8403)

Question 68295: Find the slope of the line passing through the points (�9, �4) and (0, �4).
Thanks!
Click here to see answer by checkley71(8403)

Question 68294: Use the following tabe to answer the question.
Population of Europe by Age GroupsPopulation (in thousands)195019701995Age 0-14143,175166,367139,464Age 15-64359,162421,432487,110Age 65+44,98168,642101,338Age 75+14,55322,76238,139Total547,318656,441727,912Source: European Rural Development (ERD) Project.Between 1950 and 1995, did the European population for age 15-64 or for age 75+ increase by a greater percentage?

Click here to see answer by stanbon(75887)

Question 68293: Find the slope of the line passing through the points (4, 0) and (4, 5).
Thanks!
Click here to see answer by stanbon(75887)

Question 68328: An employee who produces x units per hour earns an hourly wage of y = 0.55x + 7 (in dollars). Find the hourly wage for an employee who produces 13 units per hour.
Thank you
Click here to see answer by stanbon(75887)

Question 68327: Graph x=3
Thank you.
Click here to see answer by stanbon(75887)

Question 68209: how do you graph y<-5/4x+1/4.
Click here to see answer by ankor@dixie-net.com(22740)

Question 68343: My son is working on rise over run and finding the slope of a line. it has been a long time since I have done this kind of Math, he doesn't understand this at all.
Equation: Y<3X - 4
Please explain in steps so that I can explain it fully to him.
Thank you
Pam Jernigan
Click here to see answer by Earlsdon(6294)

Question 68324: Find the slope of the line passing through the points (�9, �1) and (�2, �1).
Click here to see answer by checkley71(8403)

Question 68289: Solve the following system of linear inequalities by graphing.
3x+4y<12
x+3y<6
x>0
y>0
All of the < > symbols are underlined I just don't know how to show it in the equations. Thanks.
Click here to see answer by ankor@dixie-net.com(22740)

Question 68287: Solve the system by graphing.
x-y=2
3x-3y=6
Click here to see answer by rmromero(383)

Question 68394:
Height(in):65,66,67,66,62,70,63,65,60,64,67,63,65,69,67,68,62,63,63,70,74,58,63,74
Shoe size:9.5,8.5,12,11,7,10,10,8,8,9,10.5,10,9.5,11,9,9.5,10,10,9,12.5,14,5,6.5,12

2)Identify the dependant and the independant variable.
4)How do u kno where the best fit line is?
6)Write an equation for ur line in point intercept form.
7)Rewrite the equation in standard form.
8)Estimate the shoe size for the following heights. Tell whether u would use linear or interpolation or linear extrapolation.height:66.5 - shoe size?
77 - shoe size?
80 - shoe size?
58 - shoe size?
10)Describe the pattern indicated in ur scatter plot. Do u think this pattern will continue for ever/ why or why not?
I need this information by tomarrow afternoon around about 5.00p.m Our teacher gave us a surprise project.
Click here to see answer by stanbon(75887)

Question 68309: Please help me with this I cannot seem to figure out how to graph this function.
Graph: f(x) = -2x + 2
Thanks for any help you can give.
Click here to see answer by rmromero(383)

Question 68502: Solve and graph the solution set. 3(x � 4) > 7x � 9
I am having trouble solving this problem and graphing. Could someone provide me with a little help to get back on track. Thanks.
Click here to see answer by stanbon(75887)

Question 68517: solve each equation and graph
x - 2y = 8
3x - 2y = 12

Click here to see answer by checkley71(8403)

Question 68517: solve each equation and graph
x - 2y = 8
3x - 2y = 12

Click here to see answer by rmromero(383)

Question 68532: 2x + y = 15
x + 2y = 18
Click here to see answer by rmromero(383)

Question 68558: solve each equation and graph.
3x - 6y = 9
x - 2 = 3
Click here to see answer by rmromero(383)

Question 68439: Solve the following problem: |2x-7|-5=4

Click here to see answer by rmromero(383)

Question 68510: Dont understand question 36, 40, 48 on page 142. Would love some help
Click here to see answer by funmath(2933)

Question 68573: Let y vary directly with x, with a constant of variation k = 3. Graph the equation of variation.
I remember doing this and you divide the x/y = 3 but this is as far as I got. Can someone please help me. Thanks
Click here to see answer by funmath(2933)

Question 68572: Graph using the intercept method: 2x + y = 4.
I am a bit confused on this one, any help would be greatly appreciated. Thanks
Click here to see answer by Earlsdon(6294)

Question 68580: Are the following lines parallel, perpendicular, or neither?
L1 through (�4, �7) and (1, 3)
L2 through (2, 6) and (4, 10)
a)Parallel
b)Perpendicular
c)Neither
The answer I got for this one was perpendicular. Is this correct? If not could you show me how to do this the right way. Thanks.
Click here to see answer by Earlsdon(6294)

Question 68590: solve each of the following systems by graphing...
2x -y = 4, 2x -y = 6
Click here to see answer by funmath(2933)

Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675, 676..720, 721..765, 766..810, 811..855, 856..900, 901..945, 946..990, 991..1035, 1036..1080, 1081..1125, 1126..1170, 1171..1215, 1216..1260, 1261..1305, 1306..1350, 1351..1395, 1396..1440, 1441..1485, 1486..1530, 1531..1575, 1576..1620, 1621..1665, 1666..1710, 1711..1755, 1756..1800, 1801..1845, 1846..1890, 1891..1935, 1936..1980, 1981..2025, 2026..2070, 2071..2115, 2116..2160, 2161..2205, 2206..2250, 2251..2295, 2296..2340, 2341..2385, 2386..2430, 2431..2475, 2476..2520, 2521..2565, 2566..2610, 2611..2655, 2656..2700, 2701..2745, 2746..2790, 2791..2835, 2836..2880, 2881..2925, 2926..2970, 2971..3015, 3016..3060, 3061..3105, 3106..3150, 3151..3195, 3196..3240, 3241..3285, 3286..3330, 3331..3375, 3376..3420, 3421..3465, 3466..3510, 3511..3555, 3556..3600, 3601..3645, 3646..3690, 3691..3735, 3736..3780, 3781..3825, 3826..3870, 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7606..7650, 7651..7695, 7696..7740, 7741..7785, 7786..7830, 7831..7875, 7876..7920, 7921..7965, 7966..8010, 8011..8055, 8056..8100, 8101..8145, 8146..8190, 8191..8235, 8236..8280, 8281..8325, 8326..8370, 8371..8415, 8416..8460, 8461..8505, 8506..8550, 8551..8595, 8596..8640, 8641..8685, 8686..8730, 8731..8775, 8776..8820, 8821..8865, 8866..8910, 8911..8955, 8956..9000, 9001..9045, 9046..9090, 9091..9135, 9136..9180, 9181..9225, 9226..9270, 9271..9315, 9316..9360, 9361..9405, 9406..9450, 9451..9495, 9496..9540, 9541..9585, 9586..9630, 9631..9675, 9676..9720, 9721..9765, 9766..9810, 9811..9855, 9856..9900, 9901..9945, 9946..9990, 9991..10035, 10036..10080, 10081..10125, 10126..10170, 10171..10215, 10216..10260, 10261..10305, 10306..10350, 10351..10395, 10396..10440, 10441..10485, 10486..10530, 10531..10575, 10576..10620, 10621..10665, 10666..10710, 10711..10755, 10756..10800, 10801..10845, 10846..10890, 10891..10935, 10936..10980, 10981..11025, 11026..11070, 11071..11115, 11116..11160, 11161..11205, 11206..11250, 11251..11295, 11296..11340, 11341..11385, 11386..11430, 11431..11475, 11476..11520, 11521..11565, 11566..11610, 11611..11655, 11656..11700, 11701..11745, 11746..11790, 11791..11835, 11836..11880, 11881..11925, 11926..11970, 11971..12015, 12016..12060, 12061..12105, 12106..12150, 12151..12195, 12196..12240, 12241..12285, 12286..12330, 12331..12375, 12376..12420, 12421..12465, 12466..12510, 12511..12555, 12556..12600, 12601..12645, 12646..12690, 12691..12735, 12736..12780, 12781..12825, 12826..12870, 12871..12915, 12916..12960, 12961..13005, 13006..13050, 13051..13095, 13096..13140, 13141..13185, 13186..13230, 13231..13275, 13276..13320, 13321..13365, 13366..13410, 13411..13455, 13456..13500, 13501..13545, 13546..13590, 13591..13635, 13636..13680, 13681..13725, 13726..13770, 13771..13815, 13816..13860, 13861..13905, 13906..13950, 13951..13995, 13996..14040, 14041..14085, 14086..14130, 14131..14175, 14176..14220, 14221..14265, 14266..14310, 14311..14355, 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23941..23985, 23986..24030, 24031..24075, 24076..24120, 24121..24165, 24166..24210, 24211..24255, 24256..24300, 24301..24345, 24346..24390, 24391..24435, 24436..24480, 24481..24525, 24526..24570, 24571..24615, 24616..24660, 24661..24705, 24706..24750, 24751..24795, 24796..24840, 24841..24885, 24886..24930, 24931..24975